Doc: Fix some broken links and quote paths

The correct paths are relative to:
- <reporoot>/examples/<module>, or
- <reporoot>/src/<module>

Removing the module specifier fixes these links/quotes.

Change-Id: I6be4f28c44bd26361b60a394158b0e6cc46b1ec0
Reviewed-by: Laszlo Papp <lpapp@kde.org>
Reviewed-by: Yoann Lopes <yoann.lopes@digia.com>
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>